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Introduction to Java Programming

Course Aims
The aims of this Java training courses is to understand the role that Java plays on the Internet; describe the benefits and methodology of object-oriented programming; use the Java Development Kit and Symantec Café to develop Java programs; develop a Java applet to run from a Web page; use the on-line documentation and debugging tools that are available for Java; embellish a Java applet with graphics and sound; create an interactive Java applet; create a graphical user interface with Java; handle run-time exceptions.

Assumed Knowledge
The prerequisites for this training course is to have extensive experience (at least 1 year) in a standard procedural programming language, such as C, Pascal, or Basic. Experience in an object-oriented language such as C++ or Smalltalk is an advantage, but is not required. Experience in developing applications in a modern integrated development environment, such as Visual Basic, Visual C++, or Delphi. Experience in using an Internet browser. Some familiarity with HTML is an advantage, but is not required. Familiarity with the Windows 95 / Windows NT 4.0 user interface.

Course Audience
This class is designed for programmers with no Java experience who want to develop applications in Java; Web page developers who want to add Java applets to Web pages; programmers with some Java experience who want to learn how to use Symantec Café; and persons interested in evaluating the capabilities and features of Java.

This course can be found in the following categories:

Course Library > Programming > Java
Course Library > Web Development

Table of Contents

Introduction to Java and OOPS

Introduction

Features of Java

Applications and Applets

Hello World - Your First Java Application

Object-Oriented Programming Concepts

Object

Encapsulation

Messages

Classes

Inheritance

Programming in Java

Examining Hello World

Braces and Blocks

Comments

Data and Variables

Command Line Arguments

Variables

Data Types

Variable Names

Variable’s Scope

Variable Initialization

Final Variables

Operators

Arithmetic Operators

Relational and Conditional Operators

Bitwise Operators

Assignment Operators

Expressions

Control Flow Statements

Statement Block

The if-else Statement

The switch Statement

Loop Statements

Exception Handling Statements

Branching Statements

Example 1: Conditional Operator

Example 2: For Loop

Example 3: While Loop

Example 4: Breaking out of a Loop

Arrays

Arrays

Creating Arrays

Two Dimensional Arrays

Declaring, Allocating and Initializing two dimensional arrays

Multi-Dimensional Arrays

Unbalanced Arrays

Searching an Array

Sorting

Bubble Sort

Summary

Example 1: Single Dimensional Array

Example 2: Multi Dimensional Array

Objects and Classes in Java - Part 1

Introduction to Classes

Creating Objects

Declaring an Object

Instantiating an Object

Initialising an Object

Using Objects

Referencing an Object’s Variables

Calling an Object’s Method

Cleaning up unused Objects

The garbage collector

Finalisation

Objects and Classes in Java - Part I1

Creating Classes

The Class Declaration

The Class Body

Providing Constructors for your Classes

Declaring Member Variables

Implementing Methods

Details of a method declaration

Returning the value from a Method

A Method’s name

Passing information into a Method

Arguments Type

Arguments Name

Pass by value

The Method Body

Controlling Access to the Members of a Class

Instance and Class Members

Initialising Instance and Class Members

More features of Java language

Managing Inheritance

Understanding Inheritance

Overriding Methods

Being a Descendent of an Object

Writing Final Classes and Methods

Creating Interfaces

Uses of Interface

Defining an Interface

Implementing the Interface

Using an Interface as a Type

Implementing Nested Interface

Inner Classes

Packages

Creating a Package

Naming a Package

Using Package members

More about Methods

Constructor Methods

Example - A line class with 3 constructors

Copy Constructors

Example - Duplicating a Point Object

Default Constructors

Example - A class to represent Coin Purses

Method Overloading

This in Constructors

Method Overriding

The finalize() Method

Garbage Collection Illustrated

Applets - Part I: Introduction

Applets

Hello World - The Applet

Examining the Hello World Applet

The Applet HTML tag

Passing Parameters to Applets

Events and Applets

The Events

AWT Components

AWT Component Overview

Adding Components to Applets

AWT Components

Label

Button

Choice

List

TextField

TextArea

Conclusion

Example 1

Example 2

Example 3

Example 4

Example 5

Example 6

Example 7

Example 8

Applets - Part II: Graphics

Drawing Rectangles

Example: Drawing a Rectangle on screen

Example: Filled Rectangle

Example: Non-square Rectangle

Example: Rectangles at random

Example: Colorful Rectangle

Example: Randomly Colored Rectangle

Example: Multiple Rectangles

Example: Drawing Many Random Rectangles

Example: Drawing Lines

Example: Rectangles, Ovals and Arcs

Example: Stoppable Thread Applet

Example: Colors Applet

Example: StackedText Applet

Animations and Sound in Java

Animations and Images

A Simple Animation

A Graphics Animation

Improving Animation display qualities

An updated graphics animation applet

Retrieving and Using Images

Displaying Bit-mapped Images

The DisplayImage Applet

The Draw Applet

Retrieving and Using Sounds

Simple Sound Playback

Loading Sound into AudioClip Objects

The String and StringBuffer Classes

The String and StringBuffer Classes

Example

Creating a String

Creating a StringBuffer

Accessor Methods

More Accessor Methods

Modifying StringBuffers

Inserting Characters

Setting Characters

Converting Objects to Strings

Converting Strings to Numbers

Strings and the Java Compiler

System Attributes

Setting System Attributes

Using Properties to Manage Program Attributes

Setting up your Properties Object

Saving Properties

Getting Property Information

Setting Properties

Command Line Arguments

Echoing Command-Line Arguments

Parsing Numeric Command-Line Arguments

Using the System Class

The Standard I/O Streams

The print, println and write Methods

Arguments to print and println

Printing Objects of different data types

System Properties

Reading System Properties

Writing System Properties

Forcing, Finalization and Garbage Collection

Multithreading

Thread

Creating Threads

Programming using Threads

Multithreading

Thread States

Putting Threads to Work

Setting Thread Properties

Thread Properties

Concept of Synchronisation in Threads

Deadlocks in Threads

Advantage of multithreading in Java over c and c++

Instrcutor-led Exercises

Further user exercises

Reader, Writer, InputStream and OutputStream

I/O Streams

Using the data sink streams

How to use file streams

How to use pipe streams

Using the processing streams

How to concatenate files

Working with Filtered Streams

How to use Filtered Streams

Using DataInputStream and DataOutputStream

Writing your own filtered streams

Object Serialization

Serializing Objects

Working with random access files

Using random access files

Writing Filters for random access files

Java Examples - Part 1

Example 1: Java Applet: Display date and time

Example 2: Java Application: Calling a Constructor

Example 3: Java Application: Reading from a file

Example 4: Java Application: Display date and time

Example 5: Java Applet: Use of mouseUp & mouseDown to draw line

Example 6: Java Applet: Using Layout Manager

Example 7: Java Applet: Changing background color

Example 8: Using Frame

Example 9: Using Frame

Example 10: Java Application: Display Age

Example 11: Java Applet: Find no. Of vowels in a string

Example 12: Java Application: Constructor and Destructor

Example 13: Demonstration of Inheritance

Example 14: Java Application: Find no. Of vowels in a string

Example 15: Java Application: Reading a file

Example 16: Java Applet: Find age when year of birth is input

Example 17: Java Applet: String manipulation

Example 18: Java Applet: Using choice and list

Example 19: Java Application: Constructor and Destructor

Java Examples - Part 2

Interface

Example 1: Implementing an Interface

Example 2: Partial Implementation of an interface in a class

Example 3: Declaring Variables as Object reference

Example 4: Declaring Variables

Example 5: Extending (Inheriting) the methods in an interface

Exception

Example 6: Implementing Exception with Try and Catch block

Example 7: The Catch Clause

Example 8: Describing an Exception

Example 9: Multiple Catch Clause

Example 10: Using Nested Try Statements

Example 11: Throw Statement

Example 12: Throw Statement

Example 13: Using Finally clause in the Try and Catch Block

Example 14: Creating User defined Exception

String Handling

Example 15: Constructing a String from a subset of character array

Example 16: Constructing one string from another

Example 17: Concatenating Strings with other data types

Example 18: Implementation of toString() method

Example 19: Character extraction from a String

Example 20: String Comparision

Example 21: String Search

Lang Classes

Example 22: Using Double Class Method

Example 23: Using Float Class Method

Example 24: Using Integer Class Method

Example 25: Using Long Class Method

Example 26: Using Character Class Method

Multithreading

Example 27: A Simple program

Example 28: Example Illustrating Multithreading

Example 29Example Illustrating Multithreading

Graphics, Font and Color

Example 30: Using graphics, fonts and color

Simple Animation and Threads

Example 31: Simple Animation and Threads

Example 32: Advanced Animation and Threads

Layout

Example 33: Border Layout

Example 34: Flow Layout

Java Examples - Part 3

Example 1: Java Applet to check whether a string is Palindrome

Example 2: Java Application: Reversing Strings

Example 3: Java Applet: Reversing String

Example 4: Java Applet with HTML code embedded in it

Example 5: Multithreading Application

Example 6: Java Application to convert decimal to binary

Example 7: Java Application which demonstrates Stack

Example 8: Java Applet: Income Tax Calculation

Example 9: Java Application: Menus

Java Examples - Part 4

Example 1: Java Applet to demonstrate ColorDialogBox and FontDialogBox

Example 2: Java Applet: Reading files from local file system

Example 3: Java Applet: Find Age for a given date

Example 4: Java Applet: String Reverse

Example 5: Java Applet: Decimal to Binary Conversion

Example 6: Java Applet with HTML embedded code

Example 7: Java Applet: Conversion

Example 8: Text Editor in Java

Example 9: Java Application: Change Issuing Machine

Example 10: Java Application: A Card Game

Example 11: Java Application: File copy and compare program

Java Examples - Part 5

Example 1: Java Applet: Conversion

Example 2: Java Applet: Change Issuing Machine

Example 3: Java Applet: Spell Check

Example 4: Java Applet: Upper/Lower Case Conversion

Example 5: Java Application: Copy and Compare Files

Example 6: Java Application: Digital Calculator

Example 7: Java Applet to demonstrate the Paint Method

Example 8: Java Application: Sorting an Array

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